// Torus and Circles.bvr\n\n// Parametric surface\ncyl=parametricSurface\ncyl.setMinMax=s,0,3.3\ncyl.setMinMax=t,0,6.6\ncyl.setEquation=x,((2+cos(t))cos(s))\ncyl.setEquation=y,((2+cos(t))sin(s))\ncyl.setEquation=z,(sint)\ncyl,setSegmentCount=20\ncyl.color=green\ncyl.spawn\n\n// Parametric curve\nhelix=parametricCurve\nhelix.setMinMax=s,0.3.3\nhelix.setMinMax=t,0,6.6\nhelix.setEquation=x,(3cos(t))\nhelix.setEquation=y,(3sin(t))\nhelix.setEquation=z,(0)\nhelix.setThickness=0.2\nhelix.color=red\nhelix,spawn